Improvement in machines for cutting lead



- CHARLES KGEHLER. Improvement in Machines for Cutting Lead. N0.125,462.l l PatentedAprilensz.

E l/ v llllllllllllllll!Hllllmllll ttmmeg.

UlvrTED S'rATns PATENT OFFIGE.

CHARLES KOEHLER, OF EVANSVILLE, INDIANA, ASSIGNOR TO HIMSELF, CHARLES BABGOCK, AND EDGAR SHARPE, OF SAME PLACE.

IMPROVEMENT IN MACHINES FORCUTTING LEAD.

Specification forming part of Letters Patent No. 125,462, dated April 9,1872.

Specification describing a new and Improved Machine for Cutting Lead, invented by `GHARLES KOEHLER, of Evansville, in the county of Vanderburgh and State of Indiana.

Figure l represents a vertical longitudinal section of my improved lead-cutting machine, the line c c, Fig. 2, indicating the plane of section. Fig. 2 is a plan or top View of the same. Fig. 3 is a vertical transverse section of the same on the line k lc, Fig. 2; and Fig. elis a de-` tail perspective view ofthe chopping-knife.

Similar letters of reference indicate corresp on ding parts.

This invention relates to a new machine for cutting blocks of lead into cubic or other foursided prisma-tic pieces to be used in the manufacture of shot, according to the plan for which Letters Patent No. 99,209 were granted to ine on the 25th day of January, 1870, or on any other plan, or for cutting other material for suitable purpose. The invention consists, first, in the arrangement of rotarycutterheads, carrying three kinds ot' cutting-tools--tor ribbing horizontally, cutting vertically, and, nally, chopping or slicing the pieces from the end of a block of lead or equivalent material. The invention also consists in the combination of the above with an automatic feed device for moving the lead ahead whenever a series of cubes have been cut therefrom.

A in the drawing represents the frame of the machine, carrying the transverse horizontal driving-shaft B, to which rotary motion is imparted by suitable mechanism, and which, by gearing a or otherwise, causes the revolution of the cutter-shaft G. The latter has its bearings in the frame A, as shown. The shaft C carries one or more cutter-heads or disks D, two being shown in the drawing. Each cntter-head carries one or more sets of three kinds of cutters, b, d, and c. The cutter I) is a cylinder, provided with longitudinal cutting-ribs along its periphery, and hung at the ends in flanges of the head or disk B. The cutter d is a cylinder of equal diameter to b, but provided with parallel annular cutters, while e is a plain cutting -blade, fastened by projecting arms ff to the sides'of the disk, and shown in Fig. 4. The piece E of lead or other material to be cut is fed aga-inst the edge of the disk D by a screw, F, which receives intermittent rotary motion by gearing-connection t' from a shaft, G. The shaft G is provided with a star, g, a-t one end, which is struck bya pin, h, projecting from the side ot' the disk D whenever a set of cutters, b d c, ha-s acted on the block E. Every such motion imparted to the shaft G is sufficient to turn the screw and feed the block E far enough forward to furnish material for action by the next set ot' knives. The cylinder B, when carried against the end ofE, cuts the same horizontally at proper distances apart. rllhe cylinder D, following, cuts it vertically, thusforming cubic projections at the end ot' E, which are iinally cut or sliced oil by the chopper e.

Having thus described myinvention, I claim as new and desire to secure by Letters Paty ent- Y 1. The combination, on one cutter-head, of the knives b, d, and e, substantially as herein shown and described.

2. The disk D, having the pin lr, and arranged, in combination with the shaft G, star g, and feed-screw F, substantially as herein shown and described.

CHARLES KOEHLER.

Witnesses ALLEN C. HALLooK, FRANK WELDIG. 

